The Electro-Deposition/dissolution of CuSO4 aqueous electrolyte investigated by in situ soft x-ray absorption spectroscopy
學年 106
學期 1
出版（發表）日期 2017-10-01
作品名稱 The Electro-Deposition/dissolution of CuSO4 aqueous electrolyte investigated by in situ soft x-ray absorption spectroscopy
作品名稱（其他語言）
著者 Juan-Jesús Velasco-Vélez; Katarzyna Skorupska; Elias Frei; Yu-Cheng Huang; Chung-Li Dong§; Bing-Jian Su; Cheng-Jhih Hsu§; Hung-Yu Chou; Jin-Ming Chen; Peter Strasser; Robert Schlog; Axel Knop-Gericke; Cheng-Hao Chuang
單位
出版者
著錄名稱、卷期、頁數 J. Phys. Chem. B 122(2), p.780-787
摘要 The electrodeposition nature of copper on a gold electrode in a 4.8 pH CuSO4 solution was inquired using X-ray absorption spectroscopy, electrochemical quartz crystal microbalance, and thermal desorption spectroscopy techniques. Our results point out that the electrodeposition of copper prompts the formation of stable oxi-hydroxide species with a formal oxidation state Cu+ without the evidence of metallic copper formation (Cu0). Moreover, the subsequent anodic polarization of Cu2Oaq yields the formation of CuO, in the formal oxidation state Cu2+, which is dissolved at higher anodic potential. It was found that the dissolution process needs less charge than that required for the electrodeposition indicating a nonreversible process most likely due to concomitant water splitting and formation of protons during the electrodeposition.
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語言 en_US
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期刊性質 國外
收錄於 SCI
產學合作
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審稿制度 否
國別 USA
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/113668 )